PK 164+31.1 – Within the Sound… of Silence

by Bob Meincke

Objects in field: MQ J075805.49+532013.6, PK164+31.1, SDSS J075510.96+531633.3, SDSS J075525.34+532046.5, SDSS J075531.47+531833.1, SDSS J075537.88+532243.3, SDSS J075554.78+532459.7, SDSS J075556.49+531316.4, SDSS J075610.44+532341.4, SDSS J075618.73+531500.7, SDSS J075634.02+532554.5, SDSS J075634.76+532826.9, SDSS J075638.78+531036.1, SDSS J075658.02+531128.8, SDSS J075707.44+531440.7, SDSS J075711.83+533027.5, SDSS J075716.75+531550.2, SDSS J075734.58+531022.4, SDSS J075736.47+532557.0, SDSS J075741.90+532435.2, SDSS J075757.44+532122.5, SDSS J075817.93+531438.8, SDSS J075818.49+532248.6, SDSS J075824.46+532003.0, SDSS J075827.96+531536.2, SDSS J075832.61+533058.8, SDSS J075850.93+532217.0, SDSS J075855.85+533301.9, TYC3783-700-1

Equipment: TEC APO160FL, SBIG STF-8300M

Integration: 20h 45m

PK 164+31.1 – The Headphone Nebula - Within the Sound… of Silence PK 164+31.1 is a faint planetary nebula in Cepheus, formed as a dying star sheds its outer layers into space. Its red outer shell traces ionized hydrogen, while the softer blue-gray interior reveals more subtle structure shaped by the radiation of its central star. Set within a wide and quiet field, the nebula appears almost…